on thursday afternoon. >> across the street, mike harris defended israel's military strikes. >> israel has the right to defend citizens.. >> the battle for public opinion, israeli forces and hamas are both using the internet to get the messages out. at the moment they sent out a tweet saying the defense forces has begun a campaign on terror. >> and moments later they posted an video of an air strike hamas responded for every strike there is a tweet or video post, a war of information in the struggle to win hearts and minds. >> that is being fought on television and web sites and social media. >> the israeli consul general calls it a battle for legitimacy. >> i would say there is a majority that is supportive. americans understand. >> would it matter if public opinion turned against israel? >> when it comes to protecting lives of children i think at the end of the day it does not matter. >> the chair says it does matter, more than israeli y admit. >> two days ago there is considerable support that would not be in the position it is. >> now, social media has had an impact on the arab spring.